feat: Add Swagger documentation support and restructure routes

- Added @elysiajs/swagger dependency to package.json for API documentation.
- Removed the old bed router and replaced it with a new history router.
- Created a new state router to manage WebSocket connections and state updates.
- Implemented a comprehensive state management system with the StateManager service.
- Introduced AlarmManagement and BedService services for handling alarms and sensor readings.
- Established a new MQTT service for managing MQTT connections and subscriptions.
- Created an AlarmStateStore to manage volatile alerts and their states.
- Defined FrontendState types for structured state management and WebSocket messaging.

types/FrontendState.ts

@@ -0,0 +1,63 @@
+export interface MeasurementPointState {
+  id: string;
+  sensorId: string;
+  label: string;
+  zone: string;
+  x: number;
+  y: number;
+  pin: number;
+  currentValue: number;
+  lastUpdateTime: Date;
+  warningThreshold: number;
+  alarmThreshold: number;
+  warningDelayMs: number;
+  status: 'normal' | 'warning' | 'alarm' | 'offline';
+}
+
+export interface AlertState {
+  id: string;
+  measurementPointId: string;
+  type: 'WARNING' | 'ALARM';
+  value: number;
+  threshold: number;
+  acknowledged: boolean;
+  silenced: boolean;
+  startTime: Date;
+  endTime?: Date;
+  sensorLabel: string;
+  zone: string;
+}
+
+export interface SystemStatus {
+  mqttConnected: boolean;
+  databaseConnected: boolean;
+  lastHeartbeat: Date;
+  activeConnections: number;
+  totalMeasurementPoints: number;
+  activeSensors: number;
+}
+
+export interface FrontendState {
+  // Measurement points and sensor data
+  measurementPoints: Record<string, MeasurementPointState>;
+  
+  // Active alerts
+  alerts: Record<string, AlertState>;
+  
+  // System status
+  system: SystemStatus;
+}
+
+// State update events
+export interface StateUpdateEvent {
+  type: 'FULL_STATE' | 'PARTIAL_UPDATE' | 'SENSOR_UPDATE' | 'ALERT_UPDATE' | 'SYSTEM_UPDATE';
+  timestamp: Date;
+  data: Partial<FrontendState> | MeasurementPointState | AlertState | SystemStatus;
+}
+
+// WebSocket message types
+export interface WebSocketMessage {
+  type: 'STATE_UPDATE' | 'HEARTBEAT' | 'ERROR' | 'ACKNOWLEDGE_ALERT' | 'SILENCE_ALERT';
+  payload: StateUpdateEvent | { alertId: string } | { message: string };
+  timestamp: Date;
+}